Home / 1,080,685.13-1,620,788.84-312,015.86

Finding the Fourth Proportional to 1,080,685.13, 1,620,788.84 and 312,015.86

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Solution

The fourth proportional to 1,080,685.13, 1,620,788.84 and 312,015.86 is: 467,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,685.13 : 1,620,788.84 = 312,015.86 : x
  2. Step 2: Convert to fraction form
    1,080,685.13/1,620,788.84 = 312,015.86/x
  3. Step 3: Cross multiply
    1,080,685.13x = 1,620,788.84 × 312,015.86
  4. Step 4: Simplify right side
    1,080,685.13x = 505,711,814,126.98
  5. Step 5: Solve for x
    x = 505,711,814,126.98/1,080,685.13
  6. Step 6: Final answer
    x = 467,954.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.